A state bill designed to expand rent control stalled out in Sacramento this week. The effort to dramatically change the regulation is the largest effort in decades.

The bills’ author, Assemblyman Richard Bloom (D-Santa Monica), postponed the proposal for a year, in order to do additional work with constituencies, before seeking a vote in 2018. Landlords are fiercely opposed to the legislation, saying it would result in less housing being built.

One of the main parts of the bill would repeal the landmark Costa-Hawkins Act, a 1995 law barring rent caps on single-family homes and apartments that were subsequently built. Tenant groups don’t like the act, though it is considered a cornerstone law by apartment developers and landlords.